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NEUTRINO
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
An elementary, electrically neutral particle with a very small mass
Classified under:
Nouns denoting natural objects (not man-made)
Hypernyms ("neutrino" is a kind of...):
lepton (an elementary particle that participates in weak interactions; has a baryon number of 0)
Context examples:
Data from Fermi’s Large Area Telescope revealed enhanced gamma-ray emission from a well-known active galaxy at the time the neutrino arrived.
(NASA’s Fermi Traces Source of Cosmic Neutrino to Monster Black Hole, NASA)
By measuring the light patterns from these interactions in or near the detector array, IceCube can estimate the neutrinos' directions and energies.
(Antarctic detector offers first look at how Earth stops high-energy neutrinos in their tracks, National Science Foundation)
For the first time ever, scientists using NASA’s Fermi Gamma-ray Space Telescope have found the source of a high-energy neutrino from outside our galaxy.
(NASA’s Fermi Traces Source of Cosmic Neutrino to Monster Black Hole, NASA)
In contrast to the newly discovered properties of the high-energy neutrinos, about 100 trillion neutrinos with lower energies pass through the human body, on average, every second without being absorbed.
(Antarctic detector offers first look at how Earth stops high-energy neutrinos in their tracks, National Science Foundation)
High-energy neutrinos are hard-to-catch particles that scientists think are created by the most powerful events in the cosmos, such as galaxy mergers and material falling onto supermassive black holes.
(NASA’s Fermi Traces Source of Cosmic Neutrino to Monster Black Hole, NASA)
This probability — that neutrinos of a given energy will interact with matter — is what physicists refer to as a "cross section."
(Antarctic detector offers first look at how Earth stops high-energy neutrinos in their tracks, National Science Foundation)
Scientists study neutrinos, as well as cosmic rays and gamma rays, to understand what is going on in turbulent cosmic environments such as supernovas, black holes and stars.
(NASA’s Fermi Traces Source of Cosmic Neutrino to Monster Black Hole, NASA)
Most of the neutrinos studied by the research team were more than a million times more energetic than the those produced by sources like the sun or nuclear power plants.
(Antarctic detector offers first look at how Earth stops high-energy neutrinos in their tracks, National Science Foundation)
But, scientists rely on gamma rays, the most energetic form of light, to brightly flag what cosmic source is producing these neutrinos and cosmic rays.
(NASA’s Fermi Traces Source of Cosmic Neutrino to Monster Black Hole, NASA)
This study provides the first cross-section measurements for a neutrino energy range that is up to 1,000 times higher than previous measurements at particle accelerators.
(Antarctic detector offers first look at how Earth stops high-energy neutrinos in their tracks, National Science Foundation)
